The asphalt roll crusher is not only capable of handling cold/hot milling material when processing old asphalt milling material, but also crushes mixtures containing impurities (e.g. metal shavings). By changing the different tooth shapes (pointed, flat, combined), the machine can be adapted to a wide range of materials, from soft to high hardness (Mohs hardness ≤ 8).

Asphalt Roll Crusher

These advantages make the asphalt roll crusher become the core equipment to realise the closed-loop cycle of ‘milling material – recycled aggregate – new road surface’, and the adoption of the roll crusher can reduce the cost of road renovation by 20%-30%, and reduce carbon emission by more than 40%.

1. Flexible crushing technology to protect the material structure

The asphalt roll crusher adopts the principle of flexible crushing, through the extrusion and shearing effect of the double-toothed roll, it can not only efficiently crush large milling materials, but also automatically adjust the crushing force according to the hardness of the material. This technology avoids excessive damage to asphalt aggregate by traditional crushing method, effectively protects the original gradation and physical properties, and ensures that the performance of recycled material is close to the standard of new material.

2. Asphalt Milling Material Crushing Precise particle size control and uniform discharge

Through the adjustable roller spacing of the asphalt roller crusher (usually controlled in the range of 0-20mm) and optimised tooth design, it can achieve a uniform distribution of material size in the range of 0-10mm or 10-20mm. Compared with other equipment, the proportion of powder is reduced by more than 30%, which is especially suitable for recycled asphalt mixtures on the strict requirements of aggregate particle size.

3. Outstanding environmental protection and energy saving features

Low energy consumption: the roll crusher saves about 25% energy compared with the jaw crusher, and the electricity consumption per tonne is reduced to 5-8kW-h.

Low pollution: the closed structure with the dust removal system, the dust emission is less than 10mg/m3, and the noise is controlled at less than 75dB.

Resource recycling: the recycling utilisation rate can reach more than 90%, which reduces the demand for natural aggregate mining.

4. Durability and economy at the same time

The asphalt roll crusher adopts high manganese steel alloy rolls and hydraulic overload protection system, the key components life of more than 8000 hours, the maintenance cycle is extended by 3 times. Taking the model with hourly output of 100-150 tonnes as an example, the comprehensive operating cost is about 35% lower than that of traditional equipment.